Henry Gunderson faces his deepest fears after falling headlong into a crevasse. In order to survive the mountain, he must must come to terms with a personal tragedy that has haunted him for years. His nephew forms a rescue party back at base camp, but their efforts are met with disaster and the lead climber's emotional scars from previous expeditions resurface in the higher elevation.

Lost in a snowstorm Gwubbins uses her Witchy Twitchy nose to take her friends to shelter. In a magical underground ice cavern they are confronted by a frightening Iceman. The Iceman has a terrible memory but the Pirate Boy notices something about him. Could there be a connection between this amazing being and the Pirate Twins? The Iceman begins to remember - as the answer is right under his nose!

Almost immediately following 'Assignment in the Alps', the Wallace Boys and Karl-Franz head up into a remote area of the little Alpine kingdom for a bit of R&R. Little do they realize they are heading for trouble - in the form of a secret department of the CIA, America's Central Intelligence Agency.